Скачать или смотреть Resolving Flutter Video Player Errors: How to Handle Disposed Controllers and Playback Issues

Learn how to solve the issue of a Flutter Video Player that cannot play a video file twice due to disposed controllers, by making necessary changes in your build.gradle and manifest files.
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Resolving Flutter Video Player Errors: How to Handle Disposed Controllers and Playback Issues

When developing Flutter apps with video playback features, you may encounter an issue where your video player fails to play a video file more than once. This often results in a black screen and an error message that says a VideoPlayerController was used after being disposed. So, what exactly causes this problem and how can it be fixed? Let’s dive into the details.

The Problem: Disposed VideoPlayerController

Developers using the official Flutter Video Player package have reported an error:

[[See Video to Reveal this Text or Code Snippet]]

This error indicates that once a VideoPlayerController is disposed, attempting to reuse it will lead to failure, effectively blocking any further playback. This issue can be particularly frustrating, especially when you want to play a video again in your application.

The Cause of the Issue

After investigating the problem, it has been identified that the issue is often linked to the target SDK version in the build.gradle file relative to the permissions set in your project’s AndroidManifest.xml. This might also require adjusting the iOS version in your Podfile.

The Solution: Adjusting Permissions

To resolve this problem, you will need to make a few adjustments in your Android and iOS configurations. Follow the step-by-step process below:

Step 1: Update build.gradle

Within your Flutter project, navigate to the android/app/build.gradle file.

Ensure that your targetSdkVersion is set to a version compatible with the features you intend to use.

Step 2: Modify AndroidManifest.xml

Open your AndroidManifest.xml file located under android/app/src/main/.

Add the following permission to your file:

[[See Video to Reveal this Text or Code Snippet]]

This permission allows your application to query all installed packages on the device, which might be necessary for some video playback functionalities.

Step 3: Adjust the Podfile for iOS

Go to your ios/Podfile.

Set your platform version to 10 or higher:

[[See Video to Reveal this Text or Code Snippet]]

This ensures compatibility and access to necessary APIs for video playback.

Step 4: Testing Your Changes

After making the necessary changes:

Run your Flutter project again and check if the video playback issues have been resolved.

Ensure that the VideoPlayerController is properly initialized and disposed of only when you are finished using it.

Conclusion

By following these steps, you should be able to resolve the error with the VideoPlayerController, enabling reliable playback of videos even after the first play. Handling resources properly in the Flutter environment is crucial for creating responsive and functional applications.

If these measures do not resolve your issue, consider revisiting your code to ensure VideoPlayerController instances are appropriately managed throughout the lifecycle of your widgets.

Feel free to share your experiences or any additional tips below! Happy coding!